Fixed release builds

Author: octavonce

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mimalloc"
-version = "0.1.7"
+version = "0.1.8"
 authors = [
     "Octavian Oncescu <octavonce@gmail.com>",
     "Vincent Rouillé <vincent@speedy37.fr>",

libmimalloc-sys/build.rs

@@ -36,8 +36,12 @@ fn main() {
     } else {
         if cfg!(debug_assertions) {
             ("./build", "mimalloc-debug")
-        } else  {
-            ("./build", "mimalloc")
+        } else {
+            if cfg!(feature = "secure") {
+                ("./build", "mimalloc-secure")
+            } else {
+                ("./build", "mimalloc")
+            }
         }
     };